The low-energy effective action of QCD and Nambu-Jona-Lasinio models

Conference · Wed Feb 05 04:00:00 EST 1992 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:6698015

de Rafael, E ^[1]

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1. Centre de Physique Theorique, CNRS-Luminy, Case 907, F-13288 Marseille Cedex 9 (France)

We present a derivation of the low-energy effective action of an extended Nambu-Jona-Lasinio (ENJL) model to [ital O]([ital p][sup 4]) in the chiral counting. The ENJL model could originate as an approximation to QCD at intermediate energies. The low-energy effective Lagrangian we derive includes the usual pseudoscalar Goldstone modes, as well as the lower scalar, vector, and axial-vector degrees of freedom. It incorporates most of the short-distance relations which follow from QCD. The numerical predictions are compared with the experimental values of the low-energy parameters.

• OSTI ID: 6698015
• Report Number(s): CONF-920837--
• Conference Information: Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Journal Volume: 272:2
• Country of Publication: United States
• Language: English

Related Subjects

662120 -- General Theory of Particles & Fields-- Symmetry
Conservation Laws
Currents & Their Properties-- (1992-)
662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
FIELD THEORIES
FLAVOR MODEL
FUNCTIONS
GOLDSTONE BOSONS
LAGRANGIAN FUNCTION
LIE GROUPS
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
STANDARD MODEL
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
UNIFIED GAUGE MODELS